For spousal support, many states don't have a hard and fast rule, so it can go into the negotiation bin with dividing up the 401k, the toaster, the dog, etc. Spousal support can have most any criteria attached to it if the other side agrees to it.
* specific maximum length of time (yeah, have that for sure)
* remarrying (very common that they'll shack up with some guy...even for those females that previously preached against living with somebody...but when it's mo-nayy involved...yeah, it happens)
* living with somebody (not easy to enforce...even if some new dude does move in...oh...that's just an...uh....overnight.)
So if it's still in negotiation, and she's wanting Spousal Support, then see about trading horses for other tradeable stuff.
Whatever you put in the decree today about CS can be quite easy to be recalculated soon after...like 6 months to a year. So do not mix CS in with negotiating away the boat, the 2nd house, the motorcycle. Because she'll take that 2nd Jaguar sell it, then 6 months later, file to recalculate CS...and you won't get the Jag back.
Keep CS separate.
(unless she's dealing CS in your favor, then mingle it and you refile CS later to a lower level)
Also, CS goes to the state. Many states do a somewhat sliding scale of both parents income, the time they're with the kids, etc. (AZ does this...many others too)
Some states are totally one-sided on CS, kind of 1950's like almost. (IL especially)
Doublecheck me on TX...
I thought TX was the job of the CS payor only...and not the receiver. So if the receiver makes minimum wage or $100k a year...no change...only based on the payor.
But yeah...doublecheck me on that and very much read the details of TX.